Comparability of the results of PT-INR with local MNPT and APTTR with MNAPTT on different coagulation analyzers in China

International Journal of Laboratory Hematology

Volumn 31, Issue 3, 2009, Pages 352-358

  Peng, L ^b   Yan, C ^a,b   Wu, X ^b   Nie, L ^b  

^a PEKING UNIVERSITY   (China)

^b PEKING UNIVERSITY SHENZHEN HOSPITAL   (China)

Author keywords

APTT ratio; Automated coagulation analyzer; Comparability; Local mean normal PT; Mean normal APTT

Indexed keywords

PROTHROMBIN; THROMBOPLASTIN;

ADULT; AGED; ARTICLE; AUTOANALYZER; BLOOD CLOTTING TEST; CALCULATION; CHINA; CLINICAL ARTICLE; CLINICAL LABORATORY; COMPARATIVE STUDY; CONTROLLED STUDY; FEMALE; HUMAN; INTERNATIONAL NORMALIZED RATIO; MALE; PARTIAL THROMBOPLASTIN TIME; PRIORITY JOURNAL; PROTHROMBIN TIME; STATISTICAL SIGNIFICANCE;

ADULT; AGED; BLOOD COAGULATION TESTS; CHINA; FEMALE; HUMANS; INTERNATIONAL NORMALIZED RATIO; MALE; MIDDLE AGED; PARTIAL THROMBOPLASTIN TIME; PROTHROMBIN TIME;

EID: 65349134695     PISSN: 17515521     EISSN: 1751553X     Source Type: Journal    
DOI: 10.1111/j.1751-553X.2008.01071.x     Document Type: Article

References (14)

1. Clinical and Laboratory Standards Institute (CLSI) (2002) Method Comparison and Bias Estimation Using Patient Samples; Approved Guideline, 2nd edn. EP9-A2. Clinical and Laboratory Standards Institute, Wayne, PA.
2. Clinical and Laboratory Standards Institute (CLSI) (2003) Collection, Transport, and Processing of Blood Specimen for Testing Plasma-based Coagulation Assays; Approved Guideline, 4th edn. H21-A4. Clinical and Laboratory Standards Institute, Wayne, PA.
3. Clinical and Laboratory Standards Institute (CLSI) (2005) Procedures for Validation of INR and Local Calibration of PT/INR Systems. H54-P. Clinical and Laboratory Standards Institute, Wayne, PA.
4. D'Angelo A., Seveso M.P., D'Angelo S.V., Gilardoni F., Dettori A.G. Bonini P. (1990) Effect of clot-detection methods and reagents on activated partial thromboplastin time (APTT). Implications in heparin monitoring by APTT. American Journal of Clinical Pathology 94, 297 306.
5. Hillarp A., Egberg N., Nordin G., Stigendal L., Fagerberg I. Lindahl T.L. (2004) Local INR calibration of the Owren type prothrombin assay greatly improves the intra- and interlaboratory variation. A three-year follow-up from the Swedish national external quality assessment scheme. Thrombosis and Haemostasis 91, 300 307.
6. Hirai N., Tatsumi N., Hino M., Yamane T. Ohta K. (1998) Problems with assays based on fibrin clot formation principle: analysis of multilaboratory data. Osaka City Medical Journal 44, 55 71.
7. Horsti J., Uppa H. Vilpo J.A. (2005) Poor agreement among prothrombin time international normalized ratio methods: comparison of seven commercial reagents. Clinical Chemistry 51, 553 560.
8. Kitchen S., Jennings I., Woods T.A.L. Preston F.E. (1996) Wide variability in the sensitivity of APTT reagents for monitoring of heparin dosage. Journal of Clinical Pathology 49, 10 14.
9. McGlasson D.L. (2002) A comparison of INRs after local calibration of thromboplastin international sensitivity indexes. Clinical Laboratory Science 15, 91 95.
10. Meijer P., Haverkate F., Kluft C., de Moerloose P., Verbruggen B. Spannagl M. (2006) A model for the harmonisation of test results of different quantitative methods. Thrombosis and Haemostasis 95, 567 572.
11. Naghibi F., Han Y., Dodds W.J. Lawrence C.E. (1988) Effects of reagent and Instrument on prothrombin times, activated partial thromboplastin times and patient/control ratios. Thrombosis and Haemostasis 59, 455 463.
12. Opartkiattikul N. (1999) Standardization of coagulation tests. The Southeast Asian Journal of Tropical Medicine and Public Health 30 (Suppl. 3 79 85.
13. Ray M., Carroll P., Smith I. Hawson G. (1992) An attempt to standardize APTT reagents used to monitor heparin therapy. Blood Coagulation & Fibrinolysis 3, 743 748.
14. Westgard J.O., Ehrmeyer S.S. Darcy T.P. (2004) CLIA Final Rules for Quality Systems. Westgard QC Inc., Madison, WI.